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population canopy structure
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  “population canopy structure”译为未确定词的双语例句
     Fractal Characteristics of Population Canopy Structure of the Mangrove Species, Bruguiera gymnorrhiza
     红树植物木榄种群植冠层结构的分形特征
短句来源
     :The fractal characteristics of population canopy structure of the mangrove species, Bruguiera gymnorrhiza, in the National Shankou Mangrove Nature Reserve are studied by using the fractal theory.
     应用分形理论分析了山口国家级红树林自然保护区木榄种群植冠层结构的分形特征。
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  相似匹配句对
     Studies on Character of Canopy and Photosynthesis in Soybean Population
     大豆群体冠层结构及光合特性的研究
短句来源
     The Effect of CRCA II on Maize Population Canopy
     化控Ⅱ号对玉米群体冠层结构的影响
短句来源
     Study on canopy structure of population and yield of phaseolus vulgarisl
     奶花芸豆群体冠层结构特征及产量性状研究
短句来源
     For this population of C.
     在这一C.
短句来源
     On Population Aesthetics
     人口美学略论
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During 1991-1993,in cotton base counties such as Xiang Fen and Lin yi etc, according to the production index of lint cotton yield 125 kg/mu and the relationship between the local climate factors and the distribution of the time and space for cotton boll setting, we studied the relationship between the key techniques (population density, chemical adjusting and controlling,proper irrigation) and fertilization and optimum time and position for getting big and good quality bolls by utilizing the principle of leaf...

During 1991-1993,in cotton base counties such as Xiang Fen and Lin yi etc, according to the production index of lint cotton yield 125 kg/mu and the relationship between the local climate factors and the distribution of the time and space for cotton boll setting, we studied the relationship between the key techniques (population density, chemical adjusting and controlling,proper irrigation) and fertilization and optimum time and position for getting big and good quality bolls by utilizing the principle of leaf age model and the mechanism of regulating nutrient distribution with DPC(Mepiquate chloride). We put forwards a set of adverse resistance cultivation theory, i. e. big population and small individuality to adjust flowering and boll setting period; adjusting and controlling boll setting structure; early development and early maturity to avoid adverse climate influence with increasing big and good quality bolls in the 1st ̄2nd node as its main objective,increasing population density by chemical control and predating maturity as its key technics The population canopy structure of dwarf plants,short branches,small leaves and big bolls formed by this technique system benefied to improving photosynthesis, increasing short distance transport efficiency of nutrients,increasing economic yield and the utilized coefficient of light energy and increasing the control of pest insects etc. Having tested and demonstrated in 4. 6 thousand mu for 3 years, the average lint cotton yield was over 125kg/mu. This technique was a way to realize high,stable yield and high efficiency which adapted to Shanxi climate characteristics,with characteristics of early maturity,adverse resistance,saving water and energy.

针对山西棉区气候特点,根据棉铃时空分布规律,运用叶龄模式原理和缩节胺调控机制,经过3年研究,提出了以大群体小个体增结1~2节位优质大铃、以早发早熟避开高温伏旱和阴雨低温对产量和纤维品质影响的抗逆栽培理论,形成了以密植化控为核心的促早抗逆栽培技术体系,实现了亩产125kg皮棉的高产优质高效指标,大面积应用取得明显增产效应和社会、经济、生态效益。

:The fractal characteristics of population canopy structure of the mangrove species, Bruguiera gymnorrhiza, in the National Shankou Mangrove Nature Reserve are studied by using the fractal theory. The 3 a branches have box dimensions between 1.22 and 1.55, showing the complexity of the branching structure and the capacity of ecological space occupation and utilization. It may be considered that the fractal dimension provides a useful parameter for the study of light utilization...

:The fractal characteristics of population canopy structure of the mangrove species, Bruguiera gymnorrhiza, in the National Shankou Mangrove Nature Reserve are studied by using the fractal theory. The 3 a branches have box dimensions between 1.22 and 1.55, showing the complexity of the branching structure and the capacity of ecological space occupation and utilization. It may be considered that the fractal dimension provides a useful parameter for the study of light utilization and growth processes of Bruguiera gymnorrhiza. Calculated by using the two-surface method, the fractal dimensions for the crown pattern of individuals with ages of 20 to 50 years range from 2.21 to 2.54, indicating that the filling degree of foliage to the tree crown is relatively low and Bruguiera gymnorrhiza has the property of a sun plant species. Along with the increase of ages of individuals, the filling degree of foliage to the tree crown changes from high to low, and so does the fractal dimension. The box dimensions obtained from the gray scale images of population canopy are between 1.47 and 1.61. The higher the box dimension, the more loosely organized the canopy structure, and the more the photic spots. The structural information and complexity of the population canopy can be effectively disclosed using the box dimension obtained from the gray scale image of population canopy.

应用分形理论分析了山口国家级红树林自然保护区木榄种群植冠层结构的分形特征。木榄 3 a 生枝条的计盒维数介于 1.22~1.55 之间,这些维数值揭示了分枝结构的复杂程度以及占据生态空间和利用生态空间的能力。分形维数为了解木榄的光能利用效率和掌握它的生长发育过程提供了一个有用的指标。根据双表面积法,20~50 a 的木榄树冠格局的分形维数介于 2.21~2.54 之间,表明叶片对树冠的填充程度较低,该树种具有阳生的性质。随着种群个体年龄的增长,树冠被叶片填充的程度出现了由高到低的变化,其分形维数相应地呈现由高到低的动态变化特征。根据植冠层的灰度图分析,得出种群植冠层的计盒维数介于1.47~1.61 之间。计盒维数越大,表明种群植冠层的空间结构越松散,透光的空斑块越多。计盒维数有效地揭示了种群植冠层包含于图像中的结构信息及其复杂性。

 
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